JPH0445250A - Freeze recovery method for vaporized substances - Google Patents

Freeze recovery method for vaporized substances

Info

Publication number
JPH0445250A
JPH0445250A JP15274390A JP15274390A JPH0445250A JP H0445250 A JPH0445250 A JP H0445250A JP 15274390 A JP15274390 A JP 15274390A JP 15274390 A JP15274390 A JP 15274390A JP H0445250 A JPH0445250 A JP H0445250A
Authority
JP
Japan
Prior art keywords
nh4cl
gaseous material
liquid
vaporized
hot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15274390A
Other languages
Japanese (ja)
Inventor
Hiroki Satake
佐竹　寛紀
Kazuo Asakura
浅倉　一男
Katsumi Ishikawa
勝美 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Kyowa Engineering Co Ltd
Original Assignee
Hitachi Kyowa Kogyo Ltd
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kyowa Kogyo Ltd, Hitachi Ltd filed Critical Hitachi Kyowa Kogyo Ltd
Priority to JP15274390A priority Critical patent/JPH0445250A/en
Publication of JPH0445250A publication Critical patent/JPH0445250A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To efficiently freeze and recover gaseous material or the like and to improve a working environment by spraying a liquid to the gaseous material and water adsorbing thereto produced in a hot-dip galvanizing process, with this liquid at temp. lower than the transition temp. of the gaseous material, so that the gaseous material is rapidly cooled and frozen. CONSTITUTION:After hot-dip galvanizing treatment, NH4Cl is sprayed to the galvanized product on a receiving plate 4. In this process, NH4Cl 3 vaporizes and splashes in air. To this gaseous NH4Cl 3 and water adsorbing thereto, liquid nitrogen supplied from a bomb 2 is sprayed through an injection nozzle 1. By spraying liquid nitrogen at -195.8 deg.C, NH4Cl 3 and water adsorbing thereto are frozen since the transition temp. of NH4Cl is -30.5 deg.C, dropped on the plate 4 and then collected in a recovery device 5. Thereby, diffusion of NH4Cl 3 is prevented by use of a small-size recovering device 5, which improves the working environment. Moreover, NH4Cl is efficiently recovered and can be reused.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、気化物質の回収装置における気化物質の凍結
降下方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for freezing down a vaporized substance in a vaporized substance recovery device.

〔従来の技術〕[Conventional technology]

従来の技術には溶融亜鉛めっきのドロス活用法が行なわ
れていた。Conventional technology involves utilizing dross from hot-dip galvanizing.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

気化物質を大気中に拡散した状態で回収すると気化物質
の存在する範囲が広い場合や拡散が速い場合は、回収装
置の大型化や回収効率の低下に問題があった。If vaporized substances are recovered in a state in which they are diffused in the atmosphere, if the vaporized substances exist in a wide area or if they diffuse quickly, there is a problem in that the recovery device becomes larger and the recovery efficiency decreases.

本発明の目的は、気化物質及び吸着した水分を瞬時に凍
結させ、気化物質の拡散を防止し、かつ、降下させるこ
とにより、回収装置の小型化及び回収効率を高め、かつ
、作業環境を改善することにある。The purpose of the present invention is to instantly freeze vaporized substances and adsorbed moisture, prevent the diffusion of vaporized substances, and lower the vaporized substances, thereby reducing the size of recovery equipment, increasing recovery efficiency, and improving the working environment. It's about doing.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明は気化物質及び気化
物質に吸着した水分に対して、気化物質の転移点以下の
温度の液体を放射する。To achieve the above object, the present invention irradiates a vaporized substance and moisture adsorbed on the vaporized substance with a liquid having a temperature below the transition point of the vaporized substance.

〔作用〕[Effect]

気化物質に対して気化物質の転移点以下の液体を放射す
ることにより、気化物質は瞬時に凍結・降下する。また
、気化物質に吸着した水分も同時に凍結させることによ
り、降下を促進させる。By emitting a liquid below the transition point of the vaporized substance to the vaporized substance, the vaporized substance instantly freezes and falls. In addition, the moisture adsorbed on the vaporized substance is also frozen at the same time, thereby accelerating its descent.

〔実施例〕〔Example〕

溶融亜鉛めっき処理の直後、めっき品に、受皿４上で、
塩化アンモニウムを噴霧させる。その際。Immediately after the hot-dip galvanizing process, the plated product is placed on the saucer 4,
Spray with ammonium chloride. that time.

塩化アンモニウム３が気化し、大気中に飛散する。Ammonium chloride 3 vaporizes and scatters into the atmosphere.

本発明によれば、大気中に飛散した塩化アンモニウム３
に対してノズル１より、液体窒素２を放射する。このと
き、塩化アルモニウム３の転移点は、−３０，５℃のた
め、温度−１９５，８℃の液体窒素２を放射することに
より、塩化アンモニウム３及び塩化アンモニウム３に吸
着した水分が凍結し、受皿４に降下するため、回収効率
が向上する。According to the present invention, ammonium chloride 3 scattered in the atmosphere
Liquid nitrogen 2 is emitted from a nozzle 1 toward the target. At this time, the transition point of aluminum chloride 3 is -30.5°C, so by radiating liquid nitrogen 2 at a temperature of -195.8°C, ammonium chloride 3 and the water adsorbed on ammonium chloride 3 are frozen. Since it descends into the saucer 4, the collection efficiency is improved.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、気化した塩化アンモニウムを凍結させ
、回収するので、環境改善の効果がある。According to the present invention, since vaporized ammonium chloride is frozen and recovered, there is an effect of environmental improvement.

また、回収した塩化アンモニウムを再利用することによ
り、材料費低減の効果がある。Furthermore, reusing the recovered ammonium chloride has the effect of reducing material costs.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例の気化した塩化アンモニウム
を凍結させるため、説明図である。 ｌ・・・放射ノズル、２・・・液体窒素ボンベ、３・・
・塩化アンモニウムの気化物質、４・・・受皿、５・・
・回収製菓 因FIG. 1 is an explanatory diagram for freezing vaporized ammonium chloride according to an embodiment of the present invention. l...radiation nozzle, 2...liquid nitrogen cylinder, 3...
- Vaporized substance of ammonium chloride, 4... saucer, 5...
・Recovery confectionery cause

Claims (1)

【特許請求の範囲】[Claims] １．溶融亜鉛めつき作業において、塩化アンモニウム等
の気化物、及び、塩化アンモニウムに吸着した水分に対
して、その物質の転移点以下の温度の液体を放射するこ
とにより、気化物質、及び、気化物質に吸着した水分を
急冷凍結降下させることを特徴とする気化物質の凍結回
収方法。1. In hot-dip galvanizing work, vaporized substances such as ammonium chloride and moisture adsorbed on ammonium chloride are irradiated with a liquid at a temperature below the transition point of the substance. A method for freezing and recovering vaporized substances, which is characterized by rapidly freezing and freezing the adsorbed water.
JP15274390A 1990-06-13 1990-06-13 Freeze recovery method for vaporized substances Pending JPH0445250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15274390A JPH0445250A (en) 1990-06-13 1990-06-13 Freeze recovery method for vaporized substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15274390A JPH0445250A (en) 1990-06-13 1990-06-13 Freeze recovery method for vaporized substances

Publications (1)

Publication Number Publication Date
JPH0445250A true JPH0445250A (en) 1992-02-14

Family

ID=15547189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15274390A Pending JPH0445250A (en) 1990-06-13 1990-06-13 Freeze recovery method for vaporized substances

Country Status (1)

Country Link
JP (1) JPH0445250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4764587B2 (en) * 1999-11-29 2011-09-07 バルワー エス．アー． Safety cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4764587B2 (en) * 1999-11-29 2011-09-07 バルワー エス．アー． Safety cap

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